Consolidated Statements of Equity (Unaudited) - USD ($) $ in Thousands	Total	Additional Paid-In Capital	Treasury Stock	Accumulated Other Comprehensive Loss	Accumulated Deficit	Noncontrolling Interests	Class A Common Stock	Class B Common Stock
BALANCE at Jul. 31, 2019	$ 53,557	$ 273,313	$ (51,739)	$ (4,858)	$ (160,763)	$ (2,687)	$ 33	$ 258
Exercise of stock options	276	276
Stock-based compensation	1,364	1,364
Distributions to noncontrolling interests	(240)					(240)
Other comprehensive income (loss)	(1,204)			(1,204)
Net income (loss)	(1,422)				(1,513)	91
BALANCE at Oct. 31, 2019	52,331	274,953	(51,739)	(6,062)	(162,276)	(2,836)	33	258
BALANCE at Jul. 31, 2020	71,139	277,443	(56,221)	(7,410)	(139,333)	(3,633)	33	260
Exercise of stock options	185	185
Repurchases of Class B common stock through repurchase program	(2,849)		(2,849)
Restricted Class B common stock purchased from employees	(7)		(7)
Stock-based compensation	506	506
Distributions to noncontrolling interests	(28)					(28)
Other comprehensive income (loss)	222			222
Net income (loss)	8,415				8,288	127
BALANCE at Oct. 31, 2020	$ 77,583	$ 278,134	$ (59,077)	$ (7,188)	$ (131,045)	$ (3,534)	$ 33	$ 260